Base for composition floors.



J. H. SGHLAFLY. t BASE FOR COMPUSITIDN FLOORS. APPLIMTIQN ILED 313.20, 1912.

1,093,653. I Patented Apr. im

'onrrnn sriirnsmrnrnnr onnion JULU'S H. SCHLAELY, Ol CANTON, OHIO, ASSIGNOB, TO THE :BERGER MANUFAC- T'URIZII'G COMYANY, 0]? CANTON. OHIO, A CORPORATION OF 011320.

BASE FOR COMPGSITION FLORS.

Specllcation of Letterslatent.

Patented Apr, f3 l. itlh Application filed February 20, 19M. Serial No. 678,925.

lie it known that l', .lomos H. Sonn-inni', :1 i-itixen of the llnitetl States, residing at (Minton, in the eonnty of Stark and Stato of Unita have invented a eertain new ,and usel'al lnmrin'ement in a liasse for Composition Flinn-H.

My invention relates to improvementsin snveialli; formell metallic plates or bases ilesinaeil to he nseil an a support for conmosi on liners, the ohieet being' to generally improve --neh bases and to provide a oonrnvlion whieli will he strong' and durable, eanahle ot siisiainiingl great weight and :niantiii to hohl the eiaoposition firmly in place aint at the same time 'preventing' any .springing or yielding' movement of the base, while at tho same time affording,r the maxi- 'nnun amount o1c strength for use.

'lhese ohieets together with other objects rianlilv aimaient to those skilled in the art, l attain by the construction illustrated in the aeeoinpanyingr drawing.

ln they aecomoan vinig tlrawinfi': Figure 1 is a lratnientary perspective view ot the metallic hase, 'shfrnvinr' a imposition placed upon the hase. Fig.' 2 is a transverso'seolion. llig's. 3 and et are transversesections ot' hoses showing' slight modification.

in the views of the drawing similar' refw ereaee. numerals indieale similar parts.

'lhe hase is 'termed from a sheet, of metal, said sheet heine so bent or stamped as to i'orai parallel onpositely disposed relatively witlo and relatively narrow channel vlike grooves. The narrow grooves are formed of ilove-tailed .shape in Cross Section, theI relatively fiile |`Ljrooves alternating' with the relatively narrow lgroove throuohont the parallel series the relatively Wide grooves thus all. openingr on one side oi the sheet and the relativel)r narrow grooves all openingr on the other or opposite side.

ln the drawings I have inflieateil the inetallio heet by the numeral l, the narrow ilove-tailed grooves h v the numeral 2 and the wille, dove-tailed grooves by the numeral 3. ln the preferred 'form the bottoms of the ilove-tailed grooves are provitlor'l. with the :'iiln'is fl, salti ridges located -aliout midway between the walls or boundaries of the iloven lailoil grooves., the tops of the relatively wide grooves are arehefl, the areh beingr mails, up of the flat central portions 5 and the beveled or inclined portions 6. All of said parts being; torunrl integral with the sheet l. The object and purposef; oi' so forming;` the topsv oi' the relatively wille grooves is to strengthen the tons el the relatively' wide grooves and thereby preventl any sagging' or springing; of said topo. lt. is well understood in. the eonstruetion ot the lloors made op of sheet metal bases and eoinposition that the hase nhoultl he tree from any springing; action, owing; to the ,laet that suoli springing action ot the hase has a tendency to Crack the composition. "ltwill he understood that when the Composition is placed in proper relative position upon the sheet, metal hase the open clovetailetl grooves Q will he iilleiiwith theoonir positioin thereby preventing' any inward n'iovement of the walls of the tlouefaileil grooves, owing' to the fact that saitl Valls are snug-ly seated against the Composition. and hy reason ol' this fact the arched non tions of the tops oi' the relatively witte. t'g'rooves will not lie sprung; or lient flown as there, can he no movement ot' the walls ot the :lovevlaileil ,frrooves toi'artl eaeh other. it, will also he understoodthat hy providing heveleil or inulinetl portion lithere can he no upward movement, or bulging' movement ol the, heveleil portions as said beveled por# tions are loealed in contact with the com position and consequently the eoniparativelffY narrow plain top portions 5 of' the relatively wille grooves cannot he sprong' or lient down. ln lfigs. 3 and l slight molli lieations are illustrated as for instance the tops of the open grooves 2 are conve;\:o-eon eave. in their central portions anti between the wallsY ot' the (love-tailed grooves anti said eonvexo-concaveyportions, theplain portionsl T are located. The ilove-tailed grooves are also 'formed without the ridges i otherwise the Construction of the sheet of the hase is substantially the saine as that shown in. Figs. l and 2.

ln Fin'. flthe tops or open groeven are formed oy two inclined sections S, the anexos of said sections keine; located about midway 'between the w: llf,4 of the (lovo-Atailetl grooves and the bottoms ot the (loi/etaileti grooves are formed with .if--fihnpefl ridingl t), said ridges extending; to the hottonia of the 7alle o'lfthe ilove-tailed grooves and their ape/res hinted about midway between the walls oli' said cloveftailed grooves, In the modified forms the saine general ien grooves, said ridges in both instanc being 1K) for the purpose of adding rijidity to the sheet proper.

Havingl fully described my invention What 'I claim as new and desire to secure by Letters Patent, s-- 16 In fr base for composition oors formed of i sheet metal and provided with relatively;

memos narrow :unl relatively vvide grooves, sold relatively wide :intl relatively narrow grooves opening on opposite sides of the sheets, (he tops of tho relatively vvirle. slieete` arched' unl the bottoms of the relatively 2 narrow grooves provided with ridges, Suid ridges loenterl in the openings of the relotively narrow 2grooves`r substantially :is :1nd for ille purpose specified.

ln testimony that l Claim the alhove, .l have hereunto subscribed niy nume in the presence ol' tivo witnesses.

- JUL US lil. SCI'ILFL'Y. ll'itnesses XV. L. Aiionmisroin ll. H. YAM/mi2 Civ 

